baber/WOPTO huggingface dataset:
Patent CA-2243350-A1 (CA)
Title: Treatment of fabrics
Inventor: HAJARNIS UMED DATTATRY
IPC: D06M13/203
Filed: 1998-07-17
Abstract: Fibrous cellulosic material is treated by applying an aqueous solution including a polycarboxylic acid crosslinking agent and a hydroxycarboxylic acid, particulalry an aromatic ortho-hydroxy carboxylic acid, especially salicylic acid or salt particularly alkali metal ammonium or alkaline earth metal salts, as an esterification catalyst, drying the fabric and heating it to promote crosslinking esterification of the polycarboxylic acid and the cellulose of the fibrous cellulosic material to give fabric with improved wrinkle and/or crease and/or shrink resistance and/or smooth drying properties. The method has the advantage that it does not use formaldehyde derivatives and thus the operation of the method and treated materials do not release formaldehyde during manufacture or use and the catalysts do not contain or use phosphorus containing compounds.
Patent CA-2244466-A1 (CA)
Title: High resolution imaging system and method of imaging using the same
Inventor: SCHOON DAVID J
IPC: B41J2/465
Filed: 1997-01-29
Abstract: An imaging apparatus modulates or gates pluralities of light beams through individual light valves, thereby providing a greater number and finer resolution of modulated light beams without increasing the number of light valves or decreasing the spacing between adjacent light valves. A two-step modulation process is used, the first step being performed by a light generator incorporating a polygon mirror that selectively illuminates selected bundles of fiber optic strands. One strand from each bundle is routed to illuminate one of the cells in a light valve array, such that when a bundle is illuminated, every cell is illuminated by a strand from the illuminated bundle. The second step of the modulation process involves controlling the light valve array to modulate the light beams formed by the illuminated strands at each cell. Further, by ganging together multiple light valve arrays, a composite scan line may be created which spans across the width of several scan lines generated by the individual light valve arrays. The result is finer resolution and greater imaging speed utilizing far fewer light valves.
Patent CA-2245716-A1 (CA)
Title: Dark pulse tdma optical network
Inventor: MOODIE DAVID GRAHAM
IPC: H04B10/508
Filed: 1997-02-25
Abstract: An optical network includes a number of nodes coupled to an optical transmission medium, such as an optical fibre bus. Each of the nodes includes a dark pulse generator. Different nodes output dark pulses in different time slots onto the transmission medium, forming a dark pulse OTDM (optical time division multiplexed) signal. The network may have a re-entrant bus topology.
Patent CA-2248206-A1 (CA)
Title: Magnetic power transfer system
Inventor: LAMB KARL J
IPC: H02K49/04
Filed: 1997-03-13
Abstract: A power transfer assembly has a magnet rotor with permanent magnets (26) co-acting with a pair of electroconductive rings (18, 19) on a conductor rotor.  The rotary axes of the two rotors are in laterally spaced parallel relation with one of the rotors being greater in diameter than the other.
Patent CA-2250883-A1 (CA)
Inventor: HERLOCHER M LOUISE
IPC: C07K14/135
Filed: 1997-04-03
Abstract: On décrit des virus respiratoires syncytiaux (RSV) atténués et notamment de tels virus sensibles à la température. On peut utiliser les virus de la présente invention dans des compositions pharmaceutiques telles que des vaccins. On décrit également des procédés de préparation et d'utilisation de telles compositions pharmaceutiques.
Patent CA-2253314-A1 (CA)
Title: Method and apparatus for transmitting and downloading setup information
Inventor: YUEN HENRY C
IPC: H04N7/167
Filed: 1997-01-10
Abstract: Multiple channel maps are embedded in a television transmission and the appropriate channel map (68) corresponding to the particular television service used by the viewer is downloaded for use with the television receiver. Each channel map (68) is accompanied by a channel map identifier (66) which identifies the source of the television transmission and a geographic identifier. The source of a television transmission is automatically detected by monitoring the radio-frequency spectrum allocations of telecast stations. The geographic area identifier is determined by comparison with a user inputted geographic area identifier. The channel map (68) having a channel map identifier (66) corresponding to the detected television transmission source and the user inputted geographic area identifier is downloaded and stored for future use.
Patent CA-2253607-A1 (CA)
Title: Paint line cleaner
Inventor: MAXWELL JEFFREY W
IPC: C11D7/26
Filed: 1997-05-07
Abstract: A cleaning composition for paint delivery systems includes 3-90 % of an organic solvent which may comprise one or more aromatic hydrocarbons, aliphatic hydrocarbons and aliphatic esters. The composition also includes between .5 and 30 % of a hydroxy carboxylic acid such as glycolic acid, as well as a coupling agent which may comprise one or more alcohols, glycols or glycol ethers.
Patent CA-2255523-A1 (CA)
Inventor: BEAUJEAN FRANK
IPC: G01M17/04
Filed: 1998-12-07
Abstract: In the method and the apparatus for the examination of shock absorbers installed on a vehicle, a vibratory platform, on which one wheel of the vehicle is stood and which may be reciprocated with a suitable amplitude and variable frequency in a vertical, is employed to subject the wheel to an oscillation. The damping of the shock absorber is checked from the force response of the running gear to the oscillations of the vibratory platform and the relative phase function between the force exerted by the vibratory platform and the motion of the vibratory platform. The data signal, which represents the variations with time of the force response at a target frequency, is split by a tension-compression stage means into a compression stage signal, which is characteristic for the compression stage of the shock absorber, and a tension stage signal, which is characteristic for the tension stage of the shock absorber. The compression stage signal and the tension stage signal are separately supplied to further preparing means. As a basis of assessment for the quality of the installed shock absorber the degree of axle damping as related to the quotient of the spring-suspended mass to the non-spring-suspended mass is calculated. The measured values of the degree of axle damping are related to a characteristic line of a critical or border value degree of axle damping, which delimits the range of non-acceptable degrees of axle damping.
Patent CA-2256699-A1 (CA)
Title: Crystallization processing of semiconductor film regions on a substrate, and devices made therewith
Inventor: IM JAMES S
IPC: H01L21/77
Filed: 1996-05-28
Abstract: Semiconductor integrated devices such as transistors are formed in a film of semiconductor material formed on a substrate. For improved device characteristics, the semiconductor material has regular, quasi-regular or single-crystal structure. Such a structure is made by a technique involving localized irradiation of the film with one or several pulses of a beam of laser radiation, locally to melt the film through its entire thickness. The molten material then solidifies laterally from a seed area of the film. The semiconductor devices can be included as pixel controllers and drivers in liquid-crystal display devices, and in image sensors, static random-access memories (SRAM), silicon-on-insulator (SOI) devices, and three-dimensional integrated circuit devices.
Patent CA-2256737-A1 (CA)
Title: Endoscopic inspection sensor for coke oven batteries
Inventor: BASTIAN NORBERT
IPC: G03B37/00
Filed: 1997-05-23
Abstract: PCT No. PCT/FR97/00902 Sec. 371 Date Nov. 16, 1998 Sec. 102(e) Date Nov. 16, 1998 PCT Filed May 23, 1997 PCT Pub. No. WO97/45761 PCT Pub. Date Dec. 4, 1997An endoscopic probe includes an inspection head attached to the end of a longitudinally flexible supporting line which connects it to an operating unit provided with means for moistening the line. The supporting line (2) is rigid under axial torsion, whilst the inspection head (1) is movable in axial rotation and is formed by a demountable assemblage of two parts: a permanent part (11), attached to the end of the supporting line by means of a rotary joint (10) and housing a miniaturized photography device (26), and an interchangeable part (12), fastened rigidly to said permanent part in the extension of the latter with the aid of a demountable joint (44) and comprising a parietal (lateral or axial) orifice provided with a wide angle ocular lens (23) followed by an optical line (25) for conveying the light energy picked up by said lens toward the photography device (26). A motor system and encoder (32 to 36) are mounted in the probe for motorizing the axial rotation of the inspection head and ensuring adjustment of its angular position in relation to the supporting line. The endoscopic probe is suitable for the visual inspection of the flues of coke ovens.
Patent CA-2258475-A1 (CA)
Title: Disinfecting toilet seat system
Inventor: YEUNG SHU-KI
IPC: A47K13/30
Filed: 1999-01-05
Abstract: The disinfecting toilet seat system comprises a toilet seat with at least one  seat  surface,  disinfecting means  for disinfecting said toilet seat,  containing means to hold said disinfecting means,  means  to  trigger disinfection, means  mounting  said  toilet  seat  for  pivoting  movement and/or seat surface sequencing relative to said containing means,  and  means  mounting  said  containing  means  for pivoting  movement  relative  to  said  toilet  seat  and/or mounting said containing means between said toilet seat and a toilet bowl, wherein said containing means comprises at least one element generally matching said at least one seat surface, and maintains said toilet seat disinfecting means in orientation to facilitate application of disinfection to said toilet seat when said containing means and said toilet seat are within predetermined proximity of each other.
Patent CA-2258578-A1 (CA)
Inventor: CURTRIGHT WILLIAM AMES
IPC: G09G1/06
Filed: 1996-06-20
Abstract: L'invention concerne un procédé mis en oeuvre par ordinateur pour la transformation de cartes imprimées en images mémorisées sous forme numérique à format unique. Les images cartographiques mappées par points correspondant à une carte imprimée sont produites par balayage ou autre. Une image cartographique mappée par points est ensuite découpée pour permettre la sélection d'une image cartographique correspondant à une zone géographique voulue, telle qu'une zone divisée en degrés (80). Les frontières de l'image cartographique sélectionnée sont déplacées de sorte que la zone géographique prenne une forme de damier, tel qu'un rectangle. L'image cartographique sélectionnée est ensuite redimensionnée de sorte qu'elle contienne une zone de pixels prédéterminée (82). L'image cartographiée, de format homogène, est ensuite stockée dans un identificateur d'un point de référence et de la taille de la zone géographique (84) représentée par l'image cartographique. Par exemple, l'identificateur (84) peut être le nom d'un fichier lisible par un ordinateur contenant l'image cartographique.
Patent CA-2259354-A1 (CA)
Title: Improved electronic gaming apparatus
Inventor: JENKINS HARRY H
IPC: A63F9/24
Filed: 1997-06-27
Abstract: This invention is an electronic gaming apparatus ( 10), including a cabinet (12) for housing video and sound generating electronics (8, 30, 32, 34, 36), coin handling (20), payout (26) mechanism, and a video display screen (16). The preferred display screen (16) is substantially taller than it is wide and has a touch screen. Although the displayed video presentation may take any form, the preferred slot machine display embodiment includes graphics replicating the standard play board at top (15), game board in the middle (17), and principal user input interface below (19).
Patent CA-2261517-A1 (CA)
Title: Method of enhancing oil recovery from an oil bearing formation through secondary fluid displacement
Inventor: PEACHEY BRUCE RICHARD
IPC: E21B43/16
Filed: 1999-02-12
Abstract: A method of enhancing oil recovery from an oil bearing formation through secondary fluid displacement. The method includes the step of injecting a second displacement fluid of a second density as a secondary fluid displacement into an oil bearing formation which has been subjected to a primary fluid displacement by a first displacement fluid of a first density from one of above or below a production zone. The first displacement fluid and the second displacement fluid are immiscible in oil. One of the first displacement fluid and the second displacement fluid has a density that is greater than oil and the other of the first displacement fluid and the second displacement fluid has a density that is less than oil. The secondary fluid displacement is in the same direction as the primary fluid displacement to displace oil remaining in the formation that was not displaced by the primary fluid displacement. The injection of the second displacement fluid is controlled to prevent displacement of substantial quantities of the first displacement fluid from the formation and avoid having to alter the position of the production zone as injection of the second displacement fluid continues.
Patent CA-2262774-A1 (CA)
Inventor: DRAVIDA SUBRAHMANYAM
IPC: H04L29/08
Filed: 1999-02-24
Abstract: A simple point-to-point data link protocol (SDL) is defined which is based on the use of a length indicator field and an error check field, rather than a flag, for performing packet boundary recovery in a receiver. In an embodiment of the invention, an SDL  transmitter transmits SDL packets comprising a header and a variable length payload. The SDL header comprises a length indicator (LI) field, a type field and a cyclic redundancy check (CRC) field. For receiving these transmitted SDL packets, SDL supports the use of a self-synchronization/self-delineation technique in the receiver. The receiver performs self-delineation as a function of the LI field, and performs self synchronization, or packet recovery, as a function of both the LI field and the header CRC field. In particular, in performing packet recovery, the receiver performs a CRC check over each received SDL packet header and synchronization is declared after N correct checks, e.g., N  = 4. The SDL receiver operates in a hunt made when performing synchronization, and a normal mode when synchronization has been accomplished.
Patent CA-2270172-A1 (CA)
Inventor: PANESCU DORIN
IPC: A61N1/00
Filed: 1997-10-27
Abstract: Ces structures de support d'électrodes multiples (20(a)) sont géométriquement asymétriques, que ce soit axialement ou radialement ou les deux. Ces structures asymétriques de support sont constituées de languettes (51, 58) disposées entre une pièce centrale distale (24) et une base proximale (26). Dans un mode de réalisation, les languettes (51, 58) se répartissent selon une circonférence autour de la pièce centrale (24), de façon asymétrique sur un plan radial, ce qui se solde par une densité de languettes plus importante dans une partie de la structure que dans l'autre. Dans le même mode de réalisation, ou bien dans un autre, ces languettes (51, 58) sont préformées de manière à être disposées de façon asymétrique sur un plan axial, ce qui débouche sur une géométrie des parties distales différente de la géométrie des parties proximales.
Patent CA-2270232-A1 (CA)
Title: Shingle
Inventor: KALKANOGLU HUSNU M
IPC: E04D1/26
Filed: 1999-04-27
Abstract: A multi-layer shingle is made by cutting an anterior layer of shingle material to have a headlap area and a tab area, and with a plurality of tabs being present in the tab area, separated by slotted openings. The tab area of the anterior layer has a predetermined design that has a repeatability in the longitudinal direction, or from one edge of a shingle to another in the right-to-left direction, which repeatability is a function of the length of the shingle between said left and right edges, as well as being a function of the number of tabs in the shingle's anterior layer, with the repeatability being smaller or greater than the length of the shingle in the longitudinal direction. Thereby, an ornamental appearance is provided that has a random, natural-looking effect when the shingles are laid up on a roof.
Patent CA-2270832-A1 (CA)
Title: Molten metal pump and method of using
Inventor: AREAUX LARRY D
IPC: C22B9/16
Filed: 1997-11-05
Abstract: An inert gas bubble-actuated molten metal pump (PU) is located between one section of a metal-melting furnace (10) and a second section to pump molten metal from the one section, wherein the molten metal is at a higher temperature, into the second section, wherein the molten metal (26) is at a lower temperature, and its effluent is directed into contact with metal chips (80) being charged into the second section, thereby assisting in the more rapid melting of the chips into the molten metal (26) mass in the second section. The inert gas (IG) employed to actuate the molten metal pump (PU) is captured beneath a heat-resistant and flame-resistant cover (30) located above the exit port of the pump (PU) and over a substantial portion of the molten (26) mass in the second section, thereby providing a non-oxidizing atmosphere at the surface of the molten metal (26) mass or pool beneath said cover (30). In this manner the inert gas (IG) is employed not only to actuate the inert gas bubble-actuated molten metal pump (PU), but also to assist in the rapid melting of metal chips (80) being charged, as well as to provide a non-oxidizing atmosphere at the surface of the molten metal (26).
Patent CA-2270876-A1 (CA)
Title: N-(aryl/heteroaryl) amino acid derivatives, pharmaceutical compositions comprising same, and methods for inhibiting .beta.-amyloid peptide release and/or its synthesis by use of such compounds
Inventor: NISSEN JEFFREY S
IPC: A61P25/28
Filed: 1997-11-20
Abstract: Disclosed are compounds which inhibit .beta.-amyloid peptide release and/or its synthesis, and, accordingly, have utility in treating Alzheimer's disease. Also disclosed are pharmaceutical compositions comprising a compound which inhibits .beta.-amyloid peptide release and/or its synthesis as well as methods for treating Alzheimer's disease both prophylactically and therapeutically with such pharmaceutical compositions.
Patent CA-2271608-A1 (CA)
Title: Reduction of spot misplacement through electrostatic focusing of uncharged drops
Inventor: STEARNS RICHARD G
IPC: B41J2/06
Filed: 1999-05-13
Abstract: A method and apparatus which laterally focusses aqueous ink drops onto a substrate, using electric fields. The drops are not charged, and focusing results from the forces on the uncharged dielectric drop that occur in a nonuniform electric field. It is shown that initial lateral velocity misdirection of the drops is corrected using electric fields.  Lateral velocities which would produce drop displacements of -50µm from their intended positions, at a height of 1mm above the ink surface, may be corrected to produce displacements of less than 2.5µm.
Patent CA-2273596-A1 (CA)
Inventor: REDDICLIFFE EDWARD A
IPC: F16B5/06
Filed: 1999-06-01
Abstract: An assembly comprising two components (1,4) each having a hole (3, 6, 8), and a fastening mechanism comprising a hook (2) on one component by which one component is hooked on to the other such that the two holes are aligned.     A quick fit fastener (7) is inserted into the aligned holes to secure the components against relative movement in a direction which could cause the hook to be disengaged from its hooked position.
Patent CA-2274629-A1 (CA)
Inventor: ARGILLIER JEAN-FRANCOIS
IPC: E21B36/00
Filed: 1999-06-07
Abstract: Un procédé pour isoler une colonne de tubes placée dans une canalisation et dans laquelle circule un fluide, l'isolant étant une mousse non rigide produite à partir d'une solution liquide et située dans l'espace annulaire défini par l'extérieur de la colonne de tubes et les parois de la canalisation dans laquelle se trouvent ces tubes. Un puits de production débouche dans sa partie basse sur une roche productrice contenant un fluide à extraire. Dans le puits de production est placé le tubing. La zone représente l'annulaire défini par l'extérieur de la colonne de tubes et les parois du puits dans lequel se trouvent ces tubes. Un tube d'injection d'un fluide liquide et/ou gazeux est placé dans l'annulaire et une buse d'injection du fluide liquide et/ou gazeux débouche dans la zone.
Patent CA-2274656-A1 (CA)
Inventor: WITTCHOW EBERHARD
IPC: F22B1/18
Filed: 1997-12-01
Abstract: The invention relates to a steam generator (1) which is both suitable for a horizontal mode of construction and offers the advantages of a continuous steam generator. According to the invention, a steam generator (1) comprises at least one continuous heating surface (8, 10) arranged in a canal where hot gas circulates in a substantially horizontal direction.      Said heating surface consists of a plurality of parallel and almost vertical pipes (13, 14) which are used to circulate a fluid, and is designed in such a way that the fluid circulating in a tube (13, 14) heated to a greater temperature than the following tube (13, 14) of the same continuous heating surface (8, 10) has a higher flow rate than the fluid circulating in said following tube (13, 14).
Patent CA-2274838-A1 (CA)
Inventor: VULIGONDA VIDYASAGAR
IPC: C07D417/02
Filed: 1997-12-09
Abstract: La présente invention concerne des composés représentés par la formule générale (1). La signification des symboles employés dans cette formule est conforme à la description. Ces composés présentent une activité biologique de type antagoniste des rétinoïdes et/ou agoniste inverse des rétinoïdes.
Patent CA-2276821-A1 (CA)
Title: Method for charging batteries
Inventor: BROTTO DANIELE C
IPC: H02J7/00
Filed: 1999-07-06
Abstract: A method for charging and monitoring a rechargeable battery is proposed. The charging method includes charging a rechargeable battery, sensing temperature of said battery, and calculating temperature change rate. The method further includes sensing voltage of said battery after the temperature change rate reaches a predetermined value, calculating voltage change rate, and reducing current sent to the battery when the voltage change rate reaches a predetermined value. A second embodiment of the charging method may include charging a rechargeable battery, sensing temperature and voltage of said battery, and calculating temperature and voltage change rates. The method further includes sensing for a maximum voltage change rate after the temperature change rate reaches a predetermined value, and reducing current sent to the battery when the maximum voltage change rate is sensed. In addition, the method may include sensing for a minimum voltage change rate before sensing for the maximum change rate, wherein sensing for the maximum change rate would begin after the temperature change rate reaches a predetermined value or after the minimum voltage change rate is sensed.
Patent CA-2278028-A1 (CA)
Title: Methods for improving transformation efficiency
Inventor: MEYER TERRY EUCLAIRE
IPC: C12N15/82
Filed: 1998-01-09
Abstract: The present invention is drawn to compositions and methods for improving transformation efficiency. The compositions, synthetic marker genes, are used in transformation methods and result in increased transformation efficiency. The synthetic marker genes can be designed for maximum expression in any system.